What is llms.txt, and does it help promote a business in AI?

The llms.txt file is a proposed standard designed to help large language models (LLMs) better understand and use website content.

In 2023–2024, this idea began to be discussed by developers, SEO specialists, and technical content teams working with documentation, APIs, and large websites. The main motivation was pragmatic: AI models struggle to “digest” complex websites but perform well with content that is clearly structured for AI.

In SEO, there are already standards such as robots.txt and sitemaps that help search engines navigate websites more efficiently. The difference with llms.txt is that it is designed specifically for AI models that use your content to answer questions or generate responses for users.

Implementing llms.txt can give websites more AI brand visibility and potentially drive additional AI referral traffic.

How llms.txt can be useful for promoting a business in AI systems

llms.txt is a tool not only for developers, but also for companies that want AI to represent their brand correctly. It is especially useful for:

• – SaaS platforms (can quickly “browse” product documentation and features thanks to structured data)
  
• – E-commerce websites (can accurately describe main products or, for example, highlight promotions, avoiding outdated pages)
  
• – Service companies
  
• – Brands actively working with content and marketing

Thanks to llms.txt, you can tell AI which pages of your website are key for users, which improves the accuracy of responses and the AI visibility of your brand..

Among the most popular systems that use structured website data to promote brands and are targeted by GEO specialists are:

• – ChatGPT (OpenAI)
  
• – Claude (Anthropic)
  
• – Bard (Google)
  
• – Gemini (Google DeepMind)
  
• – Bing Chat (Microsoft)
  
• – Perplexity AI
  
• – DeepSeek

In the Czech Republic, the most widely used AI chatbot is ChatGPT, which accounts for approximately 84% of the market among AI services for generating responses and automating tasks, while other services such as Perplexity (~7%), Microsoft Copilot (~6%), Google Gemini (~2%), and Claude (<1%) have significantly lower user shares in the local context.

These systems take into account AI crawlability and AI indexing signals, making them key to experiments with brand promotion through AI.

What problem can llms.txt solve?

1. The complexity of modern websites—most AI crawlers only read basic HTML and cannot see content loaded via JavaScript. llms.txt creates an AI-friendly page structure that allows AI to quickly absorb information.
   
2. Information overload – AI does not always know which pages are important. If it scans old or outdated pages, the answers may be inaccurate. llms.txt helps to indicate priority pages and structured content blocks.

Structure of llms.txt files

llms.txt files must be structured in Markdown for AI: an easy markup language that AI systems can easily process.

Standard elements:

# for H1, ## for H2, ### for H3

> for quotes and important notes

- or * for bulleted lists

[text](url) for hyperlinks

: for explanations next to links

``` for code blocks

For large sites, you can add H3/H4, tables, and code examples to give AI more context and optimized content for AI.

How to create and upload the llms.txt file

In order for AI assistants to use your content, you need to create the llms.txt file and place it on your website.

Step 1. Identify key content

Select the pages or sections of the site that are important to show to AI:

• – Product or service pages
• – Recent blog posts
• – About Us page
• – Contact page
• – Pricing page

Step 2. Create a file

1. Open a text editor (e.g., Notepad, Sublime Text, VS Code).
2. Create a new file and name it llms.txt.
3. Add structured content in Markdown format, for example:

# Website name
> Brief description of the website

## Products
- [Product 1](https://yourdomain.com/product-1): Main function and benefits
- [Product 2](https://yourdomain.com/product-2): Main function and benefits

## Blog
- [Article 1](https://yourdomain.com/blog-1): Brief description
- [Article 2](https://yourdomain.com/blog-2): Brief description

## Company
- [About us](https://yourdomain.com/about)
- [Contacts](https://yourdomain.com/contact)
- [Prices](https://yourdomain.com/pricing)

Step 3. Upload the file to the website

• – Place it in the root folder (https://yourdomain.com/llms.txt).
• – Make sure the file opens via a direct URL.

Risks and limitations

The standard is not yet supported by all AI systems. Incorrect file structure may result in important content being ignored.

Recommendations:

• – Follow Markdown syntax
• – Update the file regularly
• – Remove outdated links and add new important content
• – Track metrics such as AI visibility tracking, AI SERP, and zero-click visibility

Is it worth implementing llms.txt?

llms.txt is useful for large and complex websites or those that actively generate content. For small websites with basic information, its implementation is not yet critically necessary.

It is worth considering this as part of AI brand visibility, experimenting with all available promotion methods and assessing their potential impact on the brand.

At boweb.cz, we believe that llms.txt is another tool that can be useful for increasing brand visibility in the world of AI. As competition grows every year, it is important to experiment with all available promotion methods and evaluate their potential impact on the brand. Want to optimize your website for AI? Contact boweb.cz!